Checking hydraulic valve clearance compensating elements (bucket tappets) · ar0500s2010a · Mercedes-Benz WIS

AR05.00-S-2010A

Checking hydraulic valve clearance compensating elements (bucket tappets)

7.3.95

ENGINE 111 in MODEL 638

S05.00-3000-06

1 Cylinder head cover

2 Cam

3 Valve tappet

S05.00-3001-06

3 Valve tappet

4 Guide sleeve

5 Pressure spring

6 Oil inflow neck

7 Oil inflow bore

8 Lock ring

9 Oil pan

10 Bolt

11 Oil pan

12 Ball head

13 Ball head guide

14 Working chamber

 	Removing and installing
1	Take the engine to operating temperature	Coolant temperature approx. 80 °C
2	Check the oil level of the engine and correct if necessary		AP18.00-D-0101A
3	Remove the cylinder head cover (1)		AR01.20-S-5014A
4	Rotate the engine by the crankshaft until the cam (2) in the tappet to be tested (3) is in its basic circle	The tip of cam must point upwards	AR01.00-S-0120A
	Checking
5	With the aid of an appropriate tool push the tappet (3) by hand	 Do not use steel tools! Push the tappet with normal manual force.  If the pressure applied is too great, the tappet apparently drops, when really what is occurring is that the valve opens. When one tappet drops quicker in comparison with the others
		Replace the tappet	AR05.00-S-2310A
		 If the drop times of the different tappets are irregular check the oil pressure supply of the cylinder head
		Engine oil circuit as-built configuration	GF18.00-S-1106A
		clean the oil duct in the cylinder head	AR01.30-S-5450A
6	Installation in reverse order